Tube and method of forming the same



Oct. v6 1931. s. A. NEIDICH TUBE ANE METHOD OF FORMING THE SAME originalFiled Nov. 14, 1928 tion serial No. 319,274

1928, for Letters Patent of the United States Patented Oct. 6, 1931UNITED STATES Pa'rEN'lf OFFICEv SAMUEL A.. NEIDIMGH, l' EDGEWATER PBK,NEW JEB/SEY, ASSIGNOR ,SANITE GOB- YOBATIQNOF BURLINGTON, NEW JERSEY, ACOBPORATION 0F NEW JERSEY AND METHOD 0F FOBMING THEv Driglnalapplication vllellll'ovemlier 14, 1928, Serial No. 319,274. Divided andApril'l'f, 1930. Serial No. 444,950.

This is a division of m original applicaled November 14,

for improvement in tubes and methods of forming the-same.

' My invention may be advantageously employed in the manufacture offancy tubes adapted for forming casings of fountam pens, pencils,umbrella handles,'etc., from sheet celluloid, cellulose nitrate,cellulose acetate, other products of cellulose, or any suitablesubstance which may be formed into a tube by rolling a ,primarily planesheet moistened with a solvent of such substance which causes thecontiguous convolutions to cohere.

The present cost of plain celluloid is about forty cents per sheet (.010x X 50) but Celluloid including metallic powders forming clouded effectstherein, costs ninety cents per sheet, and what is known as pearl7celluloid, viz., clear celluloid in which fish scale powder is suspendedand which has the ap? pearancek of mother of pearl, costs $2.50 persheet. Altho it is highly advantageous to use as little as possible ofsuch costly fancy materials in such tubes; they have heretofore beenmade entirely of the costly materials. The essential feature of myinvention is such construction, arrangement and disposition of a minimumquantity of the costly material in a tube formed principally of cheapermaterial, as to convey the impression that the entire tube is formed ofsuch costly material.

`As hereinafter described, such minimum quantity of such fancy materialmay be in the form of an extremely thin sheet, which I term a patternpiece, of such extent as to form but a single convolution in the tube,and such pattern piece may be covered and its beauty enhanced, bytransparent material in which light is refracted and reected, and, ifsuch pattern piece be translucent, it may be backed by opaque materialconcealing the contents ofthe tube such as ink in a fountain'pen or themetal or the Wooden stick of an umbrella or cane.

My lnvention4 includes the varlous novel features of procedure,construction, and

this application filed arrangement hereinafter more definitelyspecified.

'In said drawings: Fig. I is a cross. sectional view of a tubeconveniently embodying my invention.

Fig. II is a longitudinal edge view of a sheet of material with apattern piece thereon, forming a tube blank.

Fig. III is a fragmentary plan view of a portion of the tube blank shownin Fig. II.

Fig. IV is a fragmentary vertical sectional view of die means forpunching the pattern and filling pieces shown in Fig. III.

Referring to Fig.\I; the inner tube 1 may be formed of cheap material inany convenient way, for instance, by boring a solid rod of Celluloid orthe like, or by extrusion in primarily tubular form, or by rolling athin sheet of the desired material while moistened with a suitablesolvent. Acetone is a suitable solvent for Celluloid and cellulosenitrate; but I prefer to employ ethyl acetate or a mixture of alcoholand ether as a solvent for cellulose acetate. The latter is preferableto Celluloid for the purposes herein contemplated, because it isnon-inflammable.

Said inner tube 1 may be translucent, but is preferably opaque, or hasan opaqueY inner portion 2, if it is desired to/conceal the contents ofthe tube, as the inkin a fountain pen or the metal or wooden stick of anumbrella or cane. Said .inner tube 1 may be entirely surrounded and thusconcealed by a tube of fancy material 4; formed from what I have termeda pattern piece. Said pattern piece 1i'llvvhmh may be transparentCelluloid or the e. Such a tube as shown in Figi I may be formed byrollin the primaril plane sheet shown in Fig. Il? which may e forniedfofcelluloid or the like .010 of an inch thick, and of which the ortionfrom 6 to 7 may be opaque white and) may be clear. The pattern piece 10may be a primarily plane sheet of Celluloid or the like, of fancy apearance, for instance, what is known to t e trade as mottled blue, i.e., a mixture of different shades or tints of translucent bluecelluloid. Such a blank as indicated in Fig. II may be moistened with asolventl and rolled to form such a tube as shown in Fig. I, wherein thefancy strata 4 is formed by the pattern piece 10 between the opaqueinner tube 1 formed by the convolutions of said sheet from 6 to 7, andthe translucent tube 5 is formed by the portion of said sheet 7 to 8. 1

As indicated in Fig. III, the pattern piece 10 may have perforations 12and 13 made therethru and said perforations 12 may be left open so thatthe opaque white material may show thru, and the perforations 13 may beplugged with filling pieces 14, for instance, of pearl Celluloid. Whensaid tube blank shown in Figs. II and III is rolled to form a tube, saidpattern piece 10 forms a complete convolution therein and is covered andits beautiful appearance enhanced by the clear portion of said sheetfrom 7 to 8.

As indicated in Fig. IV;` the pattern piece 10 may be punched with theperforations 12 and 13 and the filling pieces 14 be simultaneouslypunched, by inserting both the pattern piece and the blank for thefiller 14 between die members 16 and 17-and contemporaneously1 punchingthe same with the die 18.

I do not desire to limit myself to the precise details of operation,construction, and arrangement herein set forth, as Vit is obvious thatvarious modifications may be made therein without departing from theessential features of my invention, as defined. in the appended claims.

I claim:

. 1. A tube comprising a sheet product evolutely rolled, and a patternpiece inclosed between the convolutions of said sheet; the portion ofsaid sheet extending outwardly from said pattern piece beingtranslucent, so that it is visible therethru wherein the pattern pieceis translucent; and a portion of the sheet extending inwardly therefrom-is opaque and conceals the contents of the tube.

2. A tube as in claim 1; wherein the pattern piece is perforated.

3. A tube as in claim 1; wherein the pattern piece is perforated and aperforation thereof is filled with material visibly differing from it.

In testimony whereof, Il have hereunto signed my name at Burlington, NewJersey, this 19th day of December, 1929.

SAMUEL A. NEIDICH.

of a cellulose

